I am currently at 121k NW with 803 acres, just over 50k defense points and 43k offence points. During the war i just took part in i was only attacked once and managed to come out of the war having captured + 174 acres and enough honour to make me a Baron. Perhaps that was a fluke coming through the war without being attacked more.
I think i shall give the Hospitals a go yet i am hesitant about Guard Stations. I still think, for better or worse, that the acres would be better used as Forts to secure my acres in the first place.
Cheers for all of the feedback. I think Guard Stations might be better if they also helped against the amount of gc's, runes or bushels stolen from a province during Theif ops in the same way they work with acres taken during Traditional March attacks. As they are now i do not, in all of my accumulated noob level wisdom, feel Guard Stations are 'worth it'.